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公开(公告)号：US20240361163A1
公开(公告)日：2024-10-31
申请号：US18306708
申请日：2023-04-25
申请人： Chevron U.S.A. Inc.
发明人： Pamela Isobel Chacon
摘要： Properties of liquid flowing through a Venturi tube, operating characteristics of the Venturi tube, geometry of the Venturi tube, and correlation between Reynolds number and coefficient of discharge for the Venturi tube are used to determine a flow rate of liquid or liquid/liquid mixture in the Venturi tube. Determination of the Reynolds number is reiterated to increase the accuracy of the liquid flow rate measurement in the Venturi tube. The liquid flow rate in the Venturi tube is monitored to control the liquid flow.
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公开(公告)号：US20240360379A1
公开(公告)日：2024-10-31
申请号：US18433789
申请日：2024-02-06
申请人： Chevron U.S.A. Inc.
发明人： Sven Ivar Hommeltoft
摘要： A process involves sequentially treating a plurality of lipid feedstocks comprising a set of lipid feedstocks each having a chloride content of at least about 2 ppm with a metal oxide catalyst on an oxide support under first treating conditions to produce respective treated streams of the set of lipid feedstocks having a chloride content less than 1 ppm until a given one of the respective treated streams has a chloride content greater than 1 ppm and the metal oxide catalyst is converted to a spent metal oxide catalyst, converting the spent metal oxide catalyst to a rejuvenated metal oxide catalyst, and treating one or more additional lipid feedstocks each having a chloride content of at least about 2 ppm with the rejuvenated metal oxide catalyst under second treating conditions to produce one or more respective treated streams each having a chloride content less than 1 ppm.
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公开(公告)号：US12130398B2
公开(公告)日：2024-10-29
申请号：US17672486
申请日：2022-02-15
申请人： Chevron U.S.A. Inc.
发明人： Prasenjit Roy , Yang Zhang , Xinfa Zhu , Reynaldo Cardona , Yong Hua , Kun Fu , Bassel Mouloud Almoughraby
IPC分类号： G01V1/48 , G01V1/00 , G01V1/46 , G01V1/50 , G06F18/214
CPC分类号： G01V1/50 , G01V1/003 , G01V1/46 , G06F18/214 , G01V2210/1299 , G01V2210/62
摘要： Well data (e.g., well log) may be divided into multiple segments, and different samplings of data in the individual segments may be performed to increase the amount of data that is used to train a seismic inversion model. Synthetic well data may be generated from real well data to increase the amount of well data from which sampling is performed.
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公开(公告)号：US20240352320A1
公开(公告)日：2024-10-24
申请号：US18440287
申请日：2024-02-13
发明人： Tengfei Liu , Joel Edward Schmidt , Richard Grove , Robert Montgomery , Jon Peters , Christopher John Ross , Mahdi Khademi
CPC分类号： C10B57/045 , C01B32/05 , C10B57/005 , C10B57/06 , C10G1/10 , C10G3/57 , C10G2300/1014 , C10G2300/4006 , C10G2300/4012
摘要： A method for making needle coke includes processing a feed comprising one or more renewable feedstocks in the presence of a cracking catalyst under fluidized catalytic cracking conditions to obtain a heavy cycle oil, delayed coking the heavy cycle oil under coking conditions to obtain an intermediate coke product, and calcining the intermediate coke product under calcinating conditions to obtain needle coke.
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公开(公告)号：US20240343967A1
公开(公告)日：2024-10-17
申请号：US18751778
申请日：2024-06-24
申请人： Chevron U.S.A. Inc.
摘要： A method of making a cement composite can include contacting an aqueous solution comprising calcium ions with a carbon dioxide source producing a carbonated aqueous solution. Fine particles can be submerged in the carbonated aqueous solution to produce microaggregate particles comprising the fine particles coated with calcium carbonate. The microaggregate particles can be combined with cement particles to produce the cement composite. The cement composite can be used in cementing applications for hydrocarbon wells including for casing liners and well plugs.
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公开(公告)号：US20240327314A1
公开(公告)日：2024-10-03
申请号：US18738697
申请日：2024-06-10
申请人： Chevron U.S.A. Inc.
CPC分类号： C07C2/22 , C10G50/02 , C07C2527/06 , C07C2527/122 , C07C2527/125 , C07C2527/128
摘要： A process for producing renewable distillate-range hydrocarbons is provided. The process includes dehydrating a renewable C2-C6 alcohol feedstock to produce an olefin, oligomerizing the olefin the presence of a halometallate ionic liquid catalyst to produce an oligomer product and hydrogenating the oligomer product or fractions thereof to produce saturated distillate-range hydrocarbons.
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公开(公告)号：US12104482B2
公开(公告)日：2024-10-01
申请号：US17941733
申请日：2022-09-09
申请人： Chevron U.S.A. Inc.
发明人： Xiaorui Guan , Wangming Lu
IPC分类号： E21B47/007 , E21B17/01 , E21B33/035 , E21B47/001 , E21B47/01 , G01F1/00
CPC分类号： E21B47/007 , E21B17/012 , E21B33/0355 , E21B47/001 , E21B47/01 , G01F1/00
摘要： Current profile of water (e.g., ocean) around a riser connected to a wellhead may be measured and used to determine integrated current load on the riser at any given moment in time. The integrated current load may be used to estimate the wellhead fatigue damage rate at that moment in time. The estimated wellhead fatigue damage rate may be used to make operational decisions for the well.
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公开(公告)号：US12091922B2
公开(公告)日：2024-09-17
申请号：US17631832
申请日：2020-07-30
申请人： Chevron U.S.A. Inc.
IPC分类号： E21B17/10
CPC分类号： E21B17/1021 , E21B17/1028 , E21B17/1057
摘要： An artificial lift system utilizing a downhole impeller-style pump and a motor at the surface. The system includes a centralizer for use with the rod string or tubing. The centralizer centralizes a rotating rod at intermediate points within the tubing string. The centralizer includes a plurality of flexure springs and bearings. A rod string tensioner induces a tension load on the rod string.
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公开(公告)号：US12090468B2
公开(公告)日：2024-09-17
申请号：US17199262
申请日：2021-03-11
申请人： CHEVRON U.S.A. INC.
发明人： Yihua Zhang , Guan-Dao Lei
CPC分类号： B01J23/44 , B01J21/04 , B01J21/12 , B01J23/42 , B01J35/633 , B01J35/647 , C10G45/52 , C10G2300/1096 , C10G2300/70
摘要： An improved hydrotreating catalyst and process for making a base oil product. The catalyst comprises a base extrudate of a high nanopore volume amorphous silica alumina (ASA) and alumina. The catalyst and process use a high nanopore volume ASA/alumina based catalyst to produce hydrotreated dewaxed base oil products from a hydrocarbon feedstock. The base extrudate comprises ASA having a pore volume in the 11-20 nm pore diameter range of 0.2 to 0.9 cc/g and an alumina having a pore volume in the 11-20 nm pore diameter range of 0.01 to 1.0 cc/g. The base extrudate formed has a total pore volume in the 2-50 nm pore diameter range of 0.12 to 1.80 cc/g. The catalyst further comprises at least one modifier element from Groups 6 to 10 and Group 14 of the Periodic Table. The catalyst and process provide improved aromatics saturation.
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公开(公告)号：US20240287891A1
公开(公告)日：2024-08-29
申请号：US18567322
申请日：2023-01-25
申请人： Chevron U.S.A. Inc.
IPC分类号： E21B47/06
CPC分类号： E21B47/06 , E21B2200/20
摘要： A method for identifying shut-ins of a well may include obtaining raw pressure values captured over a period of time, where each of the raw pressure values indicates a pressure at a bottom hole of the well; applying filters to the raw pressure values to generate a plurality of filtered pressure values; identifying initial sequences having monotonically trending values among the plurality of filtered pressure values; splicing adjacent initial sequences; adjusting the start point of at least one of the initial sequences based on derivatives of the filtered pressure values; applying a parametric function to the initial sequences to generate fitted sequences; and applying a pattern recognition to the fitted sequences to generate final sequences.
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